小编Dav*_*ave的帖子

我在尝试理解为什么双向数据绑定在我的自定义指令中不起作用时遇到了问题？

代码:

指令代码:

.directive('invoiceFilter', function () {
    return {
        restrict: 'E',
        replace: true,
        templateUrl: '_invoice-filter.tpl.html',
        scope: {
            selectedItem: '=',
            selectedItemChange: '&'
        },
        link: function(scope) {

            scope.items = {
                all: 'Show all invoices',
                draft: 'Show drafts only',
                open: 'Show open invoices',
                paid: 'Show paid invoices'
            };

            scope.raiseSelectedItemChange = function (key) {


                alert('Selected item in directive: ' + key + " (which seems to work!)");

                scope.selectedItem = key;
                scope.selectedItemChange();

            };

        }
    };
});

指令模板

<div class="btn-group dropdown">
    <button class="btn dropdown-toggle" type="button" id="dropdownMenu1" …